Cita APA (7th ed.)

Ford, N. (1989). PROLOG programming. Wiley.

Cita Chicago (17th ed.)

Ford, Nigel. PROLOG Programming. Chichester, West Sussex, England ; New York: Wiley, 1989.

Cita MLA (8th ed.)

Ford, Nigel. PROLOG Programming. Wiley, 1989.